/** 
 * Copyright (c) 2006, James Seigel, Calgary, AB., Canada
 * Copyright (c) 2003,2004, Stefan Haustein, Oberhausen, Rhld., Germany
 * 
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or
 * sell copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The  above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
 * IN THE SOFTWARE. 
 * Contributor(s): Paul Spencer, John D. Beatty, Dave Dash, F. Hunter, 
 *                  Renaud Tognelli, Thomas Strang, Alexander Krebs, Sean McDaniel
 */
package com.ec.prod.android.pilot.client;

import java.io.IOException;

import org.ksoap2.transport.HttpTransportSE;
import org.ksoap2.transport.ServiceConnectionSE;

/**
 * An Http transport layer class which provides a mechanism to login to
 * webservices using Basic Authentication on midp platforms.
 * 
 * <i>Thanks to Paul Spencer</i>
 */
public class HttpTransportBasicAuth extends HttpTransportSE {
	private String username;
	private String password;
	/**
	 * Constructor with username and password
	 * 
	 * @param url
	 *            The url address of the webservice endpoint
	 * @param username
	 *            Username for the Basic Authentication challenge RFC 2617 
	 * @param password
	 *            Password for the Basic Authentication challenge RFC 2617
	 */
	public HttpTransportBasicAuth(String url, String username, String password) {
		super(url);
		this.username = username;
		this.password = password;
	}

	@Override
	protected ServiceConnectionSE getServiceConnection() throws IOException {
		ServiceConnectionSE midpConnection = new ServiceConnectionSE(url);
		addBasicAuthentication(midpConnection);
		return midpConnection;
	}

	protected void addBasicAuthentication(ServiceConnectionSE midpConnection) throws IOException {
		if (username != null && password != null) {
			StringBuffer buf = new StringBuffer(username);
			buf.append(':').append(password);
			byte[] raw = buf.toString().getBytes();
			buf.setLength(0);
			buf.append("Basic ");
			org.kobjects.base64.Base64.encode(raw, 0, raw.length, buf);
			midpConnection.setRequestProperty("Authorization", buf.toString());
		}
	}
}